Loans and Allowance for Loan Losses (Details 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012 Contract	Sep. 30, 2011 Contract	Sep. 30, 2012 Contract	Sep. 30, 2011 Contract
Troubled debt restructurings
Number of contracts		3	1	7
Pre-restructuring outstanding recorded investment		$ 486	$ 392	$ 6,076
Post-restructuring outstanding recorded investment		502	392	5,762
Number of contracts			3	1
Recorded investment			1,267	71
Recorded investment
Commercial Business [Member]
Troubled debt restructurings
Number of contracts
Pre-restructuring outstanding recorded investment
Post-restructuring outstanding recorded investment
Number of contracts
Recorded investment
Recorded investment
Commercial Real Estate [Member]
Troubled debt restructurings
Number of contracts				3
Pre-restructuring outstanding recorded investment				5,581
Post-restructuring outstanding recorded investment				5,251
Number of contracts
Recorded investment
Recorded investment
One-to-Four Family [Member]
Troubled debt restructurings
Number of contracts		2	1	2
Pre-restructuring outstanding recorded investment		483	392	483
Post-restructuring outstanding recorded investment		499	392	499
Number of contracts			3	1
Recorded investment			1,267	71
Recorded investment
Home Equity [Member]
Troubled debt restructurings
Number of contracts
Pre-restructuring outstanding recorded investment
Post-restructuring outstanding recorded investment
Number of contracts
Recorded investment
Recorded investment
Consumer [Member]
Troubled debt restructurings
Number of contracts		1		2
Pre-restructuring outstanding recorded investment		3		12
Post-restructuring outstanding recorded investment		3		12
Number of contracts
Recorded investment
Recorded investment